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双条杉天牛(Semanotus bifascatus Motsch)在淮北地区主要危害侧柏、桧柏和铅笔柏等树种。近年来萧县几万亩的柏林遭其危害,且呈猖獗之势。但由于此虫极其隐蔽,成虫虫体较小,初次危害后从树体外观看不到受害症状,因而防治难度非常大。2001年和2002年我们采取小区试验的方式,取得了控制双条杉天牛危害的可喜成效。 1 双条杉天牛的生活史及习性双条杉天牛在淮北地区1年发生1代,成虫在
Semanotus bifascatus Motsch mainly endangered Platycladus orientalis, Cypress cypress and Penax cypress in Huaibei area. In recent years, tens of thousands of acres in Xiaoxian County of Berlin was harmed, and was rampant trend. However, due to the extremely subtle insects, adult worms smaller, after the initial damage from the appearance of the tree can not see the victim symptoms, so the prevention and treatment is very difficult. In 2001 and 2002, we adopted a district trial approach and achieved gratifying results in controlling the harm caused by Cunninghamella catenella. 1 double-cedar days of life and habits of crabs Cunninghamia lanceolata occurred in Huaibei 1-year generation, adult in